package com.italicatab;

import java.io.IOException;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import android.util.Log;

public class XMLParser {

	
	public String getXmlFromUrl(String url) {
        String xml = null;
 
        try {
            // defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
//            httpPost.addHeader("Content-type", "application/json");
            Log.e("URL", url);
           
            	List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
    					2);
    			nameValuePairs.add(new BasicNameValuePair("accesskey",
    					General.Access_Key));
    	
    		/*else if(General.isFrom.equals("ChangeStatus"))
    		{
    			nameValuePairs.add(new BasicNameValuePair("customerid",
    					General.CustomerId));
    			nameValuePairs.add(new BasicNameValuePair("status",
    					General.CustStatus));
    		}*/
    		
    		httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            xml = EntityUtils.toString(httpEntity);
 
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        // return XML
        return xml;
    }
	
	public Document getDomElement(String xml){
        Document doc = null;
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        try {
        	dbf.setNamespaceAware(true);
        	dbf.setIgnoringComments(true);
        	dbf.setIgnoringElementContentWhitespace(true);
        	dbf.setCoalescing(true);
            DocumentBuilder db = dbf.newDocumentBuilder();
 
            InputSource is = new InputSource();
                is.setCharacterStream(new StringReader(xml));
                doc = db.parse(is); 
 
            } catch (ParserConfigurationException e) {
                Log.e("Error: ", e.getMessage());
                return null;
            } catch (SAXException e) {
                Log.e("Error: ", e.getMessage());
                return null;
            } catch (IOException e) {
                Log.e("Error: ", e.getMessage());
                return null;
            }
                // return DOM
            return doc;
    }
	
	
	public String getValue(Element item, String str) {      
	    NodeList n = item.getElementsByTagName(str);        
	    return this.getElementValue(n.item(0));
	}
	 
	public final String getElementValue( Node elem ) {
	         Node child;
	         if( elem != null){
	             if (elem.hasChildNodes()){
	                 for( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ){
	                     if( child.getNodeType() == Node.TEXT_NODE  ){
	                         return child.getNodeValue();
	                     }
	                 }
	             }
	         }
	         return "";
	  } 
	
}
